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Muñoz-Ortiz T, Alayeto I, Lifante J, Ortgies DH, Marin R, Martín Rodríguez E, Iglesias de la Cruz MDC, Lifante-Pedrola G, Rubio-Retama J, Jaque D. 3D Optical Coherence Thermometry Using Polymeric Nanogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301819. [PMID: 37352307 DOI: 10.1002/adma.202301819] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 06/04/2023] [Indexed: 06/25/2023]
Abstract
In nanothermometry, the use of nanoparticles as thermal probes enables remote and minimally invasive sensing. In the biomedical context, nanothermometry has emerged as a powerful tool where traditional approaches, like infrared thermal sensing and contact thermometers, fall short. Despite the strides of this technology in preclinical settings, nanothermometry is not mature enough to be translated to the bedside. This is due to two major hurdles: the inability to perform 3D thermal imaging and the requirement for tools that are readily available in the clinics. This work simultaneously overcomes both limitations by proposing the technology of optical coherence thermometry (OCTh). This is achieved by combining thermoresponsive polymeric nanogels and optical coherence tomography (OCT)-a 3D imaging technology routinely used in clinical practice. The volume phase transition of the thermoresponsive nanogels causes marked changes in their refractive index, making them temperature-sensitive OCT contrast agents. The ability of OCTh to provide 3D thermal images is demonstrated in tissue phantoms subjected to photothermal processes, and its reliability is corroborated by comparing experimental results with numerical simulations. The results included in this work set credible foundations for the implementation of nanothermometry in the form of OCTh in clinical practice.
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Affiliation(s)
- Tamara Muñoz-Ortiz
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
| | - Idoia Alayeto
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Plaza de Ramón y Cajal, s/n, Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - José Lifante
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Avda. Arzobispo Morcillo 2, Madrid, 28029, Spain
- nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, Ctra de Colmenar Viejo Km 9,100, Madrid, 28034, Spain
| | - Dirk H Ortgies
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, Ctra de Colmenar Viejo Km 9,100, Madrid, 28034, Spain
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Riccardo Marin
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Emma Martín Rodríguez
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, Ctra de Colmenar Viejo Km 9,100, Madrid, 28034, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, 28049, Spain
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - María Del Carmen Iglesias de la Cruz
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Avda. Arzobispo Morcillo 2, Madrid, 28029, Spain
| | - Ginés Lifante-Pedrola
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
| | - Jorge Rubio-Retama
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Plaza de Ramón y Cajal, s/n, Universidad Complutense de Madrid, Madrid, 28040, Spain
- nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, Ctra de Colmenar Viejo Km 9,100, Madrid, 28034, Spain
| | - Daniel Jaque
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- Instituto Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- nanomaterials for BioImaging Group (nanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, Ctra de Colmenar Viejo Km 9,100, Madrid, 28034, Spain
- nanomaterials for BioImaging Group (nanoBIG), Departamento de Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
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Lu D, Retama JR, Marin R, Marqués MI, Calderón OG, Melle S, Haro-González P, Jaque D. Thermoresponsive Polymeric Nanolenses Magnify the Thermal Sensitivity of Single Upconverting Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202452. [PMID: 35908155 DOI: 10.1002/smll.202202452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Lanthanide-based upconverting nanoparticles (UCNPs) are trustworthy workhorses in luminescent nanothermometry. The use of UCNPs-based nanothermometers has enabled the determination of the thermal properties of cell membranes and monitoring of in vivo thermal therapies in real time. However, UCNPs boast low thermal sensitivity and brightness, which, along with the difficulty in controlling individual UCNP remotely, make them less than ideal nanothermometers at the single-particle level. In this work, it is shown how these problems can be elegantly solved using a thermoresponsive polymeric coating. Upon decorating the surface of NaYF4 :Er3+ ,Yb3+ UCNPs with poly(N-isopropylacrylamide) (PNIPAM), a >10-fold enhancement in optical forces is observed, allowing stable trapping and manipulation of a single UCNP in the physiological temperature range (20-45 °C). This optical force improvement is accompanied by a significant enhancement of the thermal sensitivity- a maximum value of 8% °C+1 at 32 °C induced by the collapse of PNIPAM. Numerical simulations reveal that the enhancement in thermal sensitivity mainly stems from the high-refractive-index polymeric coating that behaves as a nanolens of high numerical aperture. The results in this work demonstrate how UCNP nanothermometers can be further improved by an adequate surface decoration and open a new avenue toward highly sensitive single-particle nanothermometry.
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Affiliation(s)
- Dasheng Lu
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
| | - Jorge Rubio Retama
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Plaza de Ramón y Cajal, s/n, Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - Riccardo Marin
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
| | - Manuel I Marqués
- Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Departamento de Física de Materiales and IFIMAC, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Oscar G Calderón
- Departamento de Óptica, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, Madrid, 28037, Spain
| | - Sonia Melle
- Departamento de Óptica, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, Madrid, 28037, Spain
| | - Patricia Haro-González
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Daniel Jaque
- Nanomaterials for Bioimaging Group (NanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Ctra. Colmenar km. 9.100, Madrid, 28034, Spain
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3
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Niebuur BJ, Lohstroh W, Ko CH, Appavou MS, Schulte A, Papadakis CM. Pressure Dependence of Water Dynamics in Concentrated Aqueous Poly( N-isopropylacrylamide) Solutions with a Methanol Cosolvent. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bart-Jan Niebuur
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Wiebke Lohstroh
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Chia-Hsin Ko
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Marie-Sousai Appavou
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Alfons Schulte
- Department of Physics and College of Optics and Photonics, University of Central Florida, 4111 Libra Drive, Orlando, Florida 32816-2385, United States
| | - Christine M. Papadakis
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
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4
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Zanatta M, Tavagnacco L, Buratti E, Chiessi E, Natali F, Bertoldo M, Orecchini A, Zaccarelli E. Atomic scale investigation of the volume phase transition in concentrated PNIPAM microgels. J Chem Phys 2020; 152:204904. [PMID: 32486676 DOI: 10.1063/5.0007112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Combining elastic incoherent neutron scattering and differential scanning calorimetry, we investigate the occurrence of the volume phase transition (VPT) in very concentrated poly-(N-isopropyl-acrylamide) (PNIPAM) microgel suspensions, from a polymer weight fraction of 30 wt. % up to dry conditions. Although samples are arrested at the macroscopic scale, atomic degrees of freedom are equilibrated and can be probed in a reproducible way. A clear signature of the VPT is present as a sharp drop in the mean square displacement of PNIPAM hydrogen atoms obtained by neutron scattering. As a function of concentration, the VPT gets smoother as dry conditions are approached, whereas the VPT temperature shows a minimum at about 43 wt. %. This behavior is qualitatively confirmed by calorimetry measurements. Molecular dynamics simulations are employed to complement experimental results and gain further insights into the nature of the VPT, confirming that it involves the formation of an attractive gel state between the microgels. Overall, these results provide evidence that the VPT in PNIPAM-based systems can be detected at different time- and length-scales as well as under overcrowded conditions.
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Affiliation(s)
- M Zanatta
- Department of Physics, University of Trento, I-38123 Trento, Italy
| | - L Tavagnacco
- CNR-ISC and Department of Physics, Sapienza University of Rome, I-00185 Roma, Italy
| | - E Buratti
- CNR-ISC and Department of Physics, Sapienza University of Rome, I-00185 Roma, Italy
| | - E Chiessi
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, I-00133 Roma, Italy
| | - F Natali
- CNR-IOM, Operative Group in Grenoble (OGG), c/o Institut Laue Langevin, F-38042 Grenoble, France
| | - M Bertoldo
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - A Orecchini
- Department of Physics and Geology, University of Perugia, I-06123 Perugia, Italy
| | - E Zaccarelli
- CNR-ISC and Department of Physics, Sapienza University of Rome, I-00185 Roma, Italy
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5
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Sbeih S, Mohanty PS, Morrow MR, Yethiraj A. Structural parameters of soft PNIPAM microgel particles as a function of crosslink density. J Colloid Interface Sci 2019; 552:781-793. [DOI: 10.1016/j.jcis.2019.05.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 10/26/2022]
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6
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Niebuur BJ, Lohstroh W, Appavou MS, Schulte A, Papadakis CM. Water Dynamics in a Concentrated Poly(N-isopropylacrylamide) Solution at Variable Pressure. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02708] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Bart-Jan Niebuur
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Wiebke Lohstroh
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Marie-Sousai Appavou
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Alfons Schulte
- Department of Physics and College of Optics and Photonics, University of Central Florida, 4111 Libra Drive, Orlando, Florida 32816-2385, United States
| | - Christine M. Papadakis
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
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7
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Schweizerhof S, Demco DE, Mourran A, Fechete R, Möller M. Polymers Diffusivity Encoded by Stimuli‐Induced Phase Transition: Theory and Application to Poly(
N
‐Isopropylacrylamide) with Hydrophilic and Hydrophobic End Groups. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700587] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Sjören Schweizerhof
- DWI‐Leibniz‐Institute for Interactive Materials, e.V.RWTH‐Aachen University Forckenbeckstraße 50 D‐52074 Aachen Germany
| | - Dan Eugen Demco
- DWI‐Leibniz‐Institute for Interactive Materials, e.V.RWTH‐Aachen University Forckenbeckstraße 50 D‐52074 Aachen Germany
- Department of Physics and ChemistryTechnical University of Cluj‐Napoca 25 G. Baritiu Str. RO‐400027 Cluj‐Napoca Romania
| | - Ahmed Mourran
- DWI‐Leibniz‐Institute for Interactive Materials, e.V.RWTH‐Aachen University Forckenbeckstraße 50 D‐52074 Aachen Germany
| | - Radu Fechete
- Department of Physics and ChemistryTechnical University of Cluj‐Napoca 25 G. Baritiu Str. RO‐400027 Cluj‐Napoca Romania
| | - Martin Möller
- DWI‐Leibniz‐Institute for Interactive Materials, e.V.RWTH‐Aachen University Forckenbeckstraße 50 D‐52074 Aachen Germany
- Institute of Technical and Macromolecular ChemistryRWTH‐Aachen University Worringerweg 2 D‐52074 Aachen Germany
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8
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Kyriakos K, Philipp M, Silvi L, Lohstroh W, Petry W, Müller-Buschbaum P, Papadakis CM. Solvent Dynamics in Solutions of PNIPAM in Water/Methanol Mixtures—A Quasi-Elastic Neutron Scattering Study. J Phys Chem B 2016; 120:4679-88. [DOI: 10.1021/acs.jpcb.6b01200] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Konstantinos Kyriakos
- Fachgebiet
weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany
| | - Martine Philipp
- Fachgebiet
weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany
| | - Luca Silvi
- Heinz
Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstrasse 1, 85748 Garching, Germany
| | - Wiebke Lohstroh
- Heinz
Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstrasse 1, 85748 Garching, Germany
| | - Winfried Petry
- Fachgebiet
weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany
- Heinz
Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstrasse 1, 85748 Garching, Germany
| | - Peter Müller-Buschbaum
- Fachgebiet
weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany
| | - Christine M. Papadakis
- Fachgebiet
weicher Materie/Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany
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9
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Ruiz DS, Cristobal PA, Laurenti M, Retama JR, Lopez-Cabarcos E. Polymer Diffusion in Microgels with Upper Critical Solution Temperature as Studied by Incoherent Neutron Scattering. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1742-6596/549/1/012012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Ramadan Y, González-Sánchez MI, Hawkins K, Rubio-Retama J, Valero E, Perni S, Prokopovich P, López-Cabarcos E. Obtaining new composite biomaterials by means of mineralization of methacrylate hydrogels using the reaction–diffusion method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:696-704. [DOI: 10.1016/j.msec.2014.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 05/07/2014] [Accepted: 06/10/2014] [Indexed: 10/25/2022]
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11
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Maccarrone S, Scherzinger C, Holderer O, Lindner P, Sharp M, Richtering W, Richter D. Cononsolvency Effects on the Structure and Dynamics of Microgels. Macromolecules 2014. [DOI: 10.1021/ma500954t] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Simona Maccarrone
- Outstation
at MLZ, Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
| | - Christine Scherzinger
- Institute
of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany
| | - Olaf Holderer
- Outstation
at MLZ, Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
| | - Peter Lindner
- Institute Laue-Langevin, rue Jules
Horowitz 6, 38042 Grenoble Cedex 9, France
| | - Melissa Sharp
- Institute Laue-Langevin, rue Jules
Horowitz 6, 38042 Grenoble Cedex 9, France
| | - Walter Richtering
- Institute
of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany
| | - Dieter Richter
- Outstation
at MLZ, Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747 Garching, Germany
- Institute
of Complex Systems, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
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12
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Philipp M, Kyriakos K, Silvi L, Lohstroh W, Petry W, Krüger JK, Papadakis CM, Müller-Buschbaum P. From molecular dehydration to excess volumes of phase-separating PNIPAM solutions. J Phys Chem B 2014; 118:4253-60. [PMID: 24666206 DOI: 10.1021/jp501539z] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
For aqueous poly(N-isopropyl acrylamide) (PNIPAM) solutions, a structural instability leads to the collapse and aggregation of the macromolecules at the temperature-induced demixing transition. The accompanying cooperative dehydration of the PNIPAM chains is known to play a crucial role in this phase separation. We elucidate the impact of partial dehydration of PNIPAM on the volume changes related to the phase separation of dilute to concentrated PNIPAM solutions. Quasi-elastic neutron scattering enables us to directly follow the isotropic jump diffusion behavior of the hydration water and the almost freely diffusing water. As the hydration number decreases from 8 to 2 for the demixing 25 mass % PNIPAM solution, only a partial dehydration of the PNIPAM chains occurs. Dilatation studies reveal that the transition-induced volume changes depend in a remarkable manner on the PNIPAM concentration of the solutions. The excess volume per mole of H2O molecules expelled from the solvation layers of PNIPAM during phase separation probably strongly increases from dilute to concentrated PNIPAM solutions. This finding is qualitatively related to the immense strain-softening previously observed for demixing PNIPAM solutions.
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Affiliation(s)
- Martine Philipp
- Lehrstuhl für Funktionelle Materialien/Fachgebiet Physik weicher Materie, Physik-Department, Technische Universität München , James-Franck-Str. 1, 85748 Garching, Germany
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13
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Füllbrandt M, Ermilova E, Asadujjaman A, Hölzel R, Bier FF, von Klitzing R, Schönhals A. Dynamics of Linear Poly(N-isopropylacrylamide) in Water around the Phase Transition Investigated by Dielectric Relaxation Spectroscopy. J Phys Chem B 2014; 118:3750-9. [DOI: 10.1021/jp501325x] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marieke Füllbrandt
- BAM
Bundesanstalt für Materialforschung und -prüfung, Unter den Eichen 87, 12205 Berlin, Germany
- Stranski-Laboratorium
für Physikalische und Theoretische Chemie/Institut für
Chemie, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Elena Ermilova
- Fraunhofer-Institut
für Biomedizinische Technik IBMT, Institutsteil Potsdam-Golm, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany
| | - Asad Asadujjaman
- BAM
Bundesanstalt für Materialforschung und -prüfung, Unter den Eichen 87, 12205 Berlin, Germany
| | - Ralph Hölzel
- Fraunhofer-Institut
für Biomedizinische Technik IBMT, Institutsteil Potsdam-Golm, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany
| | - Frank F. Bier
- Fraunhofer-Institut
für Biomedizinische Technik IBMT, Institutsteil Potsdam-Golm, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany
| | - Regine von Klitzing
- Stranski-Laboratorium
für Physikalische und Theoretische Chemie/Institut für
Chemie, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Andreas Schönhals
- BAM
Bundesanstalt für Materialforschung und -prüfung, Unter den Eichen 87, 12205 Berlin, Germany
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Structure and polymer dynamics within PNIPAM-based microgel particles. Adv Colloid Interface Sci 2014; 205:113-23. [PMID: 24275613 DOI: 10.1016/j.cis.2013.11.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 11/22/2022]
Abstract
The synthesis of temperature-responsive microgels of poly(N-isopropylacrylamide) (PNIPAM) was first reported in 1986 and, since then, there have been hundreds of publications describing the preparation, characterization and applications of these systems. This paper reviews the developments concerning the study of the structure of PNIPAM-based microgels performed over the last years using small angle neutron scattering (SANS) and also the investigations of the polymer-chain dynamics within the microgels carried out with incoherent elastic and quasielastic neutron scattering, and pulse field gradient nuclear magnetic resonance (PFG-NMR) techniques. Furthermore, the self-diffusion coefficient of the water molecules within the microgel, determined by means of solvent relaxation NMR, is also discussed as a function of the polymer volume fraction of the microgels.
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15
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Serrano-Ruiz D, Alonso-Cristobal P, Laurenti M, Frick B, López-Cabarcos E, Rubio-Retama J. Influence of the inter-chain hydrogen bonds on the thermoresponsive swelling behavior of UCST-like microgels. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.06.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Colmenero J, Arbe A. Recent progress on polymer dynamics by neutron scattering: From simple polymers to complex materials. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23178] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Alonso-Cristobal P, Laurenti M, Sanchez-Muniz F, López-Cabarcos E, Rubio-Retama J. Polymeric nanoparticles with tunable architecture formed by biocompatible star shaped block copolymer. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.08.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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18
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Musial W, Voncina B, Pluta J, Kokol V. The study of release of chlorhexidine from preparations with modified thermosensitive poly-N-isopropylacrylamide microspheres. ScientificWorldJournal 2012; 2012:243707. [PMID: 22629123 PMCID: PMC3353284 DOI: 10.1100/2012/243707] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Accepted: 11/20/2011] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to investigate and compare the release rates of chlorhexidine (CX) base entrapped in the polymeric beads of modified poly-N-isopropylacrylamides (pNIPAMs) at temperatures below and over the volume phase transition temperature (VPTT) of synthesized polymers: pNIPAM-A with terminal anionic groups resulting from potassium persulfate initiator, pNIPAM-B with cationic amidine terminal groups, and pNIPAM-C comprising anionic terminals, but with increased hydrophobicity maintained by the N-tert-butyl functional groups. The preparations, assessed in vitro below the VPTT, release an initial burst of CX at different time periods between 120 and 240 min, followed by a period of 24 h, when the rate of release remains approximately constant, approaching the zero-order kinetics; the release rates for the polymers beads are as follows: pNIPAM-C>pNIPAM-B>pNIPAM-A. The pattern of release rates at temperature over the VPTT is as follows: pNIPAM-C>pNIPAM-A>pNIPAM-B. In the presence of pNIPAM-C, the duration between the start of the release and the attained minimal inhibitory concentration (MIC) for most of the microbes, in conditions over the VPTT, increased from 60 to 90 min. The release prolongation could be ascribed to some interactions between the practically insoluble CX particle and the hydrophobic functional groups of the polymer.
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Affiliation(s)
- Witold Musial
- Department of Pharmaceutical Technology, Wroclaw Medical University, ul Szewska 38, 50-139 Wrocław, Poland.
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19
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Polymer and Water Dynamics in Poly(vinyl alcohol)/Poly(methacrylate) Networks. A Molecular Dynamics Simulation and Incoherent Neutron Scattering Investigation. Polymers (Basel) 2011. [DOI: 10.3390/polym3041805] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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20
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Sun S, Wu P. Infrared spectroscopic insight into hydration behavior of poly(N-vinylcaprolactam) in water. J Phys Chem B 2011; 115:11609-18. [PMID: 21899307 DOI: 10.1021/jp2071056] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
IR spectroscopy in combination with two-dimensional correlation spectroscopy (2DCOS) and the perturbation correlation moving window (PCMW) technique is employed to illustrate the dynamic hydration behavior of poly(N-vinylcaprolactam) (PVCL) in water, which exhibits a typical type I continuous lower critical solution temperature (LCST) behavior. PCMW easily determined the transition temperature to be ca. 43.5 °C during heating and ca. 42.5 °C during cooling and the transition temperature range to be 39.5-45 °C. On the other hand, 2DCOS was used to discern the sequence order of different species in PVCL and concluded that hydrogen bonding transformation predominates at the first stage below LCST while hydrophobic interaction predominates at the second stage above LCST. In combination with molecular dynamics simulation results, we find that there exists a distribution gradient of water molecules in PVCL mesoglobules ranging from a hydrophobic core to a hydrophilic surface. Due to the absence of self-associated hydrogen bonds and topological constraints, PVCL mesoglobules would form a "sponge-like" structure which can further continuously expel water molecules upon increasing temperature, while poly(N-isopropylacrylamide) (PNIPAM) with self-associated hydrogen bonds forms mesoglobules with a "cotton-ball-like" structure without an apparent distribution gradient of water molecules and does not change much upon increasing temperature.
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Affiliation(s)
- Shengtong Sun
- The Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, People's Republic of China
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21
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Diffusion of poly(ethylene glycol) and ectoine in NIPAAm hydrogels with confocal Raman spectroscopy. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2399-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Padula C, Chiapponi C, Dibari M, Deriu A, Sonvico F, Barbieri S, Ollivier J, Santi P. Single Layer Transdermal Film Containing Lidocaine: Water and Lidocaine Mobility Determined using Neutron Scattering. J Pharm Sci 2010; 99:4277-84. [DOI: 10.1002/jps.22152] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Ghugare SV, Chiessi E, Telling MTF, Deriu A, Gerelli Y, Wuttke J, Paradossi G. Structure and Dynamics of a Thermoresponsive Microgel around Its Volume Phase Transition Temperature. J Phys Chem B 2010; 114:10285-93. [DOI: 10.1021/jp100962p] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shivkumar V. Ghugare
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
| | - Ester Chiessi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
| | - Mark T. F. Telling
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
| | - Antonio Deriu
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
| | - Yuri Gerelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
| | - Joachim Wuttke
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
| | - Gaio Paradossi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and SOFT, CNR-INFM, Rome, Italy; ISIS Facility, Rutherford Appleton Laboratory, Chilton Didcot, Oxfordshire OX11 0QX, U.K.; Dipartimento di Fisica, Università di Parma, Parma, Italy; and JCNS at FRM II, Forschungszentrum Jülich, 85747 Garching, Germany
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Rubio-Retama J, Zafeiropoulos NE, Frick B, Seydel T, López-Cabarcos E. Investigation of the relationship between hydrogen bonds and macroscopic properties in hybrid core-shell gamma-Fe2O3-P(NIPAM-AAS) microgels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7101-7106. [PMID: 20143864 DOI: 10.1021/la904452c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We investigate in a hybrid material the interactions existing between magnetic nanoparticles of gamma-Fe(2)O(3) and the polymer matrix constituted by core-shell poly(N-isopropylacrylamide-sodium acrylate) microgels. These interactions provoke the shifting of the microgel volume phase transition to higher temperatures when the amount of gamma-Fe(2)O(3) increases. The study was performed using different techniques such as incoherent quasi-elastic neutron scattering (IQNS), infrared spectroscopy (FTIR-ATR), and dynamic light scattering (DLS). Below the low critical solution temperature (LCST) of the polymer, the IQNS data confirm that the presence of inorganic nanoparticles affects the PNIPAM chain motions. Thus, in the swollen state both the mean-square displacement of the polymer segments and the diffusive motion of the polymer chains decrease as the iron oxide content increases. The FTIR-ATR study indicates that the reduction of vibrational and diffusional motions of the polymer chains is due to the formation of hydrogen bonds between the amide groups of the polymer matrix and the OH groups of the magnetic nanoparticles. The creation of this hybrid complex would explain the reduction of the swelling capacity with increasing the iron content in the microgels. Furthermore, this interaction could also explain the shift of the polymer LCST to higher temperatures as due to the extra energy required by the system to break the hydrogen bonds prior to the PNIPAM collapse.
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Affiliation(s)
- J Rubio-Retama
- Departamento Química Física II, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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25
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Deriu A, Bari MTD, Gerelli Y. Dynamics of Nanostructures for Drug Delivery: the Potential of QENS. ACTA ACUST UNITED AC 2010. [DOI: 10.1524/zpch.2010.6101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
In recent biomedical studies different nanocarrier systems have been proposed for ´smart´ drug delivery. The engineering of these systems requires as a prerequisite a detailed knowledge of their structure and dynamics at the molecular level. Quasielastic neutron scattering is an ideal tool for dynamic studies of these complex systems since it provides information on molecular motions in a time window which is important to relate the local dynamics to the macroscopic functional properties of the drug vectors. Some selected examples referring to different nanostructures will be analysed in the following.
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26
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Garcia-Salinas MJ, Donald AM. Use of Environmental Scanning Electron Microscopy to image poly(N-isopropylacrylamide) microgel particles. J Colloid Interface Sci 2010; 342:629-35. [DOI: 10.1016/j.jcis.2009.10.064] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 10/23/2009] [Accepted: 10/24/2009] [Indexed: 11/30/2022]
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27
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Osaka N, Shibayama M, Kikuchi T, Yamamuro O. Quasi-Elastic Neutron Scattering Study on Water and Polymer Dynamics in Thermo/Pressure Sensitive Polymer Solutions. J Phys Chem B 2009; 113:12870-6. [DOI: 10.1021/jp902960b] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Noboru Osaka
- Neutron Science Laboratory, Institute for Solid State Physics, University of Tokyo, 106-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Mitsuhiro Shibayama
- Neutron Science Laboratory, Institute for Solid State Physics, University of Tokyo, 106-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Tatsuya Kikuchi
- Neutron Science Laboratory, Institute for Solid State Physics, University of Tokyo, 106-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Osamu Yamamuro
- Neutron Science Laboratory, Institute for Solid State Physics, University of Tokyo, 106-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
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28
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Laurenti M, López-Cabarcos E, García-Blanco F, Frick B, Rubio-Retama J. Interpenetrated PNIPAM-polythiophene microgels for nitro aromatic compound detection. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:9579-9584. [PMID: 19456092 DOI: 10.1021/la900864a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, we present a facile and reproducible method to obtain thermally responsive, monodisperse, fluorescent microgels with diameters smaller than 700 nm based on poly(N-isopropyl acrylamide) (PNIPAM) interpenetrated with poly(thiophene-ethyl buthyl sulfonate) (PTEBS). Changing the temperature and inducing the microgel volume phase transition, it is possible to modify the photoluminescence (PL) properties of the microgels. Thus, when the temperature was below the low critical solution temperature (LCST) of PNIPAM, the PL intensity was higher than that above the LCST. Time-resolved fluorescence measurements indicate that, in the swollen state, the increment of cross-linking increases the fluorescence decay time of PTEBS. By contrast, in the collapsed state, variations in the decay time were attributed to higher rigidity of the PNIPAM-PTEBS system, which was confirmed by neutron scattering measurements. Moreover, the shift in the wavelength of the fluorescence emission peak observed above the LCST indicates that the collapsed PNIPAM matrix was able to interact with the PTEBS chains hindering the formation of pi-pi interactions. This property is envisaged for developing a picric acid microsensor based on the formation of pi-pi interactions with the pi-conjugated polymer, thus quenching its PL emission. Above the LCST of PNIPAM-PTEBS microgels, the interactions would be broken and the initial PL emission would be recovered. This property could render reusable microsensors for detection of nitro aromatic compounds.
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Affiliation(s)
- M Laurenti
- Physical Chemistry Department, Faculty of Pharmacy, Complutense University, Madrid 28040, Spain
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29
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Ghugare SV, Mozetic P, Paradossi G. Temperature-Sensitive Poly(vinyl alcohol)/Poly(methacrylate-co-N-isopropyl acrylamide) Microgels for Doxorubicin Delivery. Biomacromolecules 2009; 10:1589-96. [DOI: 10.1021/bm900185u] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shivkumar V. Ghugare
- Dipartimento di Scienze e Tecnologie Chimiche, and CRS SOFT CNR-INFM, Università di Roma Tor Vergata, 000133 Roma, Italy
| | - Pamela Mozetic
- Dipartimento di Scienze e Tecnologie Chimiche, and CRS SOFT CNR-INFM, Università di Roma Tor Vergata, 000133 Roma, Italy
| | - Gaio Paradossi
- Dipartimento di Scienze e Tecnologie Chimiche, and CRS SOFT CNR-INFM, Università di Roma Tor Vergata, 000133 Roma, Italy
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30
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Wan LS, Lei H, Ding Y, Fu L, Li J, Xu ZK. Linear and comb-like acrylonitrile/N
-isopropylacrylamide copolymers synthesized by the combination of RAFT polymerization and ATRP. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23124] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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